Case for incandescent-electric-lamp sockets.



A. WEBER, SR. & J. WEBER. CASE FOR- INOANDESCENT ELECTRIC LAMP SOCKETS.APPLICATION FILED JAN. 16, 1909. RENEWED JUNE 13, 1913.

M968, 1 92m Patented July 22, 1913.

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.A. WEBER, SR. (Kc J. WEBER. CASE FOR INCANDESCENT ELECTRIC LAMPSOCKETS. APPLICATION FILED June, 1909. RENEWED JUNE 13, 1013. 1,068,192. Paltented July 22, 19113.

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lliflllllllll J o 0 \AAT M55555 2} QM. T) Y ing a. relative plied toeachother in any relative rotative FETCH.

AUGUST WEBER, $3., AND JOHN NE BER, OE SCHENECTADY, NEW YORK. ASSIGNORSTO WEBER. ELECTRIC COMPANY, OF SCHENEG'I'ADY, NEVI YORK. Pr CORPORATIONOF NEW YORK.

CASE FOR INCANDESCENT-ELECTRIC-LAIVIP SOCKETS.

UNITED s'ra'rns Piirnnr Patented July 22, 1913. 1909,'Ser'ial No.472,663. Renewed June 13, 1913. Serial No. 773,538.

1,065,192. Specification of Letters Patent.

Application filed January 16,

form severally adapted to interlock with a seat on the cap. \Ve haveshown as a pre ferred form of catch one formed by slitoutwardly To allwhom it may concern Be 1t. known that we, Aoeus'r nnnn, Sn, and JOHNWEBER, each a citizen of the United States, residing at Schenectady,ting the shell transversely, and

county of Schenectady, and State of New dlsplaclng a portion of the bodyof the shell York, have invented certain new and useat the upper side ofsaid slit, thereby formful improvements in Cases for Incandes ing' adownwardly and outwardly inclined catch with a cut-metal edge. One ofthe catches, 4, is preferably located adjacent to the slot, 2, forconvenience in releasingthe catch by compression of the shell, ifdesired. The cap, 3, which is also preferably formed of sheet-metal, isadapted to telescopically receive within its lower end the upper end ofcent-Electric-Lamp Sockets, of which the following is a specification.

The invention relates to such improve ments and consists of the novelconstruction and combination of parts hereinafter described andsubsequently claimed.

Reference may be had to the accompanying drawings, and the referencecharacters marked thereon, which form a part of this specification.Similar characters refer to similar parts in the several figurestherein. Figure l of the drawings is a view in side elevation of a casefor incandescent electric lamp-sockets embodying our invention. Fig. 2is a bottom plan view of the cap removed. Fig. 3 is a central, verticalsection of the same, taken on the broken line 3-3 in Fig. 1. Fig. 4 is atop plan view of the shellmember of the case. Fig. 5 is a verticalcrosssection of a portion of the case, showing theinterlocking,mechanism for preventtelescopic movement of separation'ofone member from the other.

The several figures are drawn on an enlarged scale.

The principal object of the invention is to facilitate the assembling ofthe cap an shell-members of the case, while preventing relative rotationof said members when apthe shell, and'is preferably provided with acontinuous seat, 5, extending around its inner periphery adapted toreceive and interlock with the several catches, 4, in any relativerotative position of the shell and cap. The seat, 5, is formed by aledge or offset, 6, formed by bending an annular portion of the body ofthe cap into a plane perpe' .dicular to the axis of the cap, making thelower end of the cap substantially Z-shaped in cross-section, saidledge, 6, being adapted to be engaged by the cut-metal edges of thecatches, 4;, to lock the cap and shell together to prevent a relativemovement of separation thereof. The lower end or flange, 7, of the capis adapted to ride over the inclined surfaces of the catches, t, untilthe ledge, 6, reaches the lower end of the respective catches, whereu)011 the parts interlock with a snap-action. Tie cap and shell can thusbe assembled or applied to one another by a simple telescopic movementin any As a means for preventing a relative rotative movement betweenthe cap. and shell when applied toea-ch other and interlocked. whilepermitting said cap and shell to'be so applied to each other andinterlocked in any one of many relative rotative positions, the edge ofthe cap-flange, 7 is serrated to form thereon a plurality ofwedge-shaped teeth, 8, as shown in Figs. 1 and 2-, while the shell isprovided with a seat or pocket, 9, adapted to receive one of the teeth,8, when the cap and shell are assembled. in any one of the numerousrelative rotative positions in which they are designed to be used. Theseat or pocket, 9, is preferably formed by transversely slitting thebody of the shell, and outwardly displacing a'portion JOSilSiOD andinterlocked.

Other objects of the invention will appear in connection with thefollowing description.

Referring to the drawings, wherein is shown a preferred form of theinvention, 1, is the shell of the socket, preferably formed ofsheet-metal, and preferably provided with a slot, 2, which in akey-socket may be 0 a width adapted to receive the shaft of theswitclrkey, not shown.

The shell is provided near its upper end with a plurality of catches, 4,preferably symmetrically disposed about the periphery of the shell, andprojecting outwardly therefrom. For certain purposes-of the inventionthese catches may be of any desired relative rotative POSlt-IOII.

thereof on the inner side oi said slit, as shown, The number and orderor arrangement of the teeth, 8, on the cap-flange may be varied asdesired, but we prefer to continue the serrations symmetrically entirelyaround the cap, in'which case asingle seat or pocket, 9, adapted toreceive and closely fit one of said teeth, will be suiiicient to preventa relative rotative movement between the case-members in any relativerotative position in which the parts may be assembled and interlocked;although we do not wish to be limited to a single seat or pocket, 9, norto any specific form for the same, as, for certain purposes of the in-'vention, the shelllmay be provided with any known means forinterengaging with the teeth on the cap to prevent relative rotationbetween the cap and shell when interlocked, and with any desired numberof such means. I

In the preferred form of our invention shown, the ofiset or shoulders,6, projects outwardly beyond and overhangs the serrated edge-flange, 7,and protects the teeth, 8, thereon.

What we. claim as new and desire to secure by Letters Patent is V 1. Ina device of the class described, and

in combination, a sheet-metal cap having a serrated end-flange; and asheet-metal shell adapted to be telescopically received within saidflange, and having means adapted to engage the serrated edge thereof.

2. In a device of the class described,and in combination, a sheet-metalcap having a serrated end-flange; and a sheet-metal shell adapted to betelescopically received within said flange, and having means adapted toengage the serrated edge thereof, said shell and cap being automaticallyinterlockable when telescopically applied one to the other.

3. In a device of the class described, and in combination, a pair oftubular sheetmetal members, one adapted to telescopically receive theother, one having on its edge a series of teeth, and the other havformed by a displaced portion lar wall adapted to receive sa erally indifferent positions of rela tive adjustment of said members.

4. In a device of the class described, and in' combination, a pair oftubular sheetmetal members, one adapted to telescopically ,iieceive andautomatically interlock with the other in numerous positions of relativerotative adjustment, one of said members having on its edge a series ofteeth, and the other being provided with a transverse slit, and having aportion of its wall on the inner side of said slit displaced. to form apocket adapted to receive said teeth severally in different positions ofrelative rot; tive adjustment of said members.

5. In a deviceof the class described, and in combination, a sheet-metalcap having a serrated end-flange and an external shoulder overhangingsaid serrated enddiange; and a sheet-metal shell adapted to betelescopically received Within said flange onthe cap and having meansadapted to engage the serrated edge thereof.

' v 6. In a device of the class described, and

in combination, a sheet-metal cap having a serrated end-fiange andinternal locking means on the inner side of said flange; and asheet-metal shell adapted to be telescopically received within saidflange on the'cap, said shell having external locking means engageablewith the internal locking means on said cap, and having an outwardlydisplaced portion of its wall adapted to engage the serrated edge ofsaid flange on the cap. In testimony whereof, we have hereunto set ourhands this 11th day of January, 1909:

AUGUST wanna, JOHN vvns ie.

Witnesses:

MAY G. Lawson, MABnL L. MIALLORY.

Gopies oi this patent may be obtained for five cents each, my addressingthe Commissioner of Washington, D. G.

